<template>
  <!-- 左侧图片区域 -->
  <view class="goods-item">
    <view class="goods-item-left">
        <radio :checked='goods.goods_state' color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
      <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
    </view>
    <view class="goods-item-right">
      <view class="goods-name">{{goods.goods_name}}</view>
      <view class="goods-info-box">
        <view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
        <uni-number-box @change="" :value="goods.goods_count" :min="1" step="1" v-if="showNumberBox" @change="numChangeHandler"></uni-number-box>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    props:{
      goods:{
        type:Object,
        default:{},
      },
      showRadio:{
        type:Boolean,
        default:false
      },
      showNumberBox:{
        type:Boolean,
        default:false
      }
    },
    data() {
      return {
        // 默认的空图片
        defaultPic:'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
      };
    },
    methods:{
      // radio 组件的点击事件处理函数
      radioClickHandler(){
        // 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
        // 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
        this.$emit('radio-change',{
          goods_id:this.goods.goods_id,
          goods_state:!this.goods.goods_state
        })
      },
      //监听购物车商品数量改变事件
      numChangeHandler(Val){
        // console.log(Val)
        this.$emit('num-change',{
          goods_id:this.goods.goods_id,
          goods_count:Val-0  //只能是数字
        })
      }
    },
    filters:{
      tofixed(num){
        return Number(num).toFixed(2)
      }
    }
  }
</script>

<style lang="scss" scoped>
  .goods-item{
    width: 750rpx;
    box-sizing: border-box;
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #F0F0F0;
    .goods-item-left{
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-right: 5px;
      .goods-pic{
        width: 84px;
        height: 84px;
        display: block;
      }
    }
    .goods-item-right{
      display: flex;
      flex: 1;
      flex-direction: column;
      justify-content: space-between;
      .goods-name{
        font-size: 12px;
      }
      .goods-info-box{
        display: flex;
        justify-content: space-between;
        align-items: center;
        .goods-price{
          color: #C00000;
          font-size: 14px;
        }
      }
    }
  }
</style>

